/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/psyco/psyco_io_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:15:55,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:15:55,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:15:55,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:15:55,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:15:55,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:15:55,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:15:55,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:15:55,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:15:55,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:15:55,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:15:55,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:15:55,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:15:55,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:15:55,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:15:55,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:15:55,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:15:55,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:15:55,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:15:55,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:15:55,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:15:55,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:15:55,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:15:55,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:15:55,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:15:55,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:15:55,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:15:55,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:15:55,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:15:55,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 02:15:55,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:15:55,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:15:55,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:15:55,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:15:55,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:15:55,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:15:55,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:15:55,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:15:55,505 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:15:55,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:15:55,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:15:55,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:15:55,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:15:55,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:15:55,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:15:55,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:15:55,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:15:55,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:15:55,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:15:55,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:15:55,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:15:55,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:15:55,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:15:55,510 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:15:55,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:15:55,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:15:55,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:15:55,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:15:55,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:15:55,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:15:55,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:15:55,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:15:55,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:15:55,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:15:55,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:15:56,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:15:56,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:15:56,025 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:15:56,026 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:15:56,027 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 02:15:56,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd11917b1/319e6331971e49f29149af826da91c58/FLAG9ede2e489 [2020-09-25 02:15:56,694 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:15:56,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/psyco/psyco_io_1.c [2020-09-25 02:15:56,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd11917b1/319e6331971e49f29149af826da91c58/FLAG9ede2e489 [2020-09-25 02:15:56,969 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd11917b1/319e6331971e49f29149af826da91c58 [2020-09-25 02:15:56,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:15:56,993 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:15:56,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:15:56,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:15:57,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:15:57,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:15:56" (1/1) ... [2020-09-25 02:15:57,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bcc9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57, skipping insertion in model container [2020-09-25 02:15:57,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:15:56" (1/1) ... [2020-09-25 02:15:57,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:15:57,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:15:57,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:15:57,369 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:15:57,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:15:57,629 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:15:57,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57 WrapperNode [2020-09-25 02:15:57,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:15:57,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:15:57,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:15:57,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:15:57,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... [2020-09-25 02:15:57,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:15:57,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:15:57,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:15:57,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:15:57,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:15:57,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:15:57,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:15:57,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:15:57,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:15:57,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:15:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:15:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:15:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:15:58,373 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:15:58,373 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:15:58,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:15:58 BoogieIcfgContainer [2020-09-25 02:15:58,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:15:58,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:15:58,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:15:58,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:15:58,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:15:56" (1/3) ... [2020-09-25 02:15:58,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773b953e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:15:58, skipping insertion in model container [2020-09-25 02:15:58,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:15:57" (2/3) ... [2020-09-25 02:15:58,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773b953e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:15:58, skipping insertion in model container [2020-09-25 02:15:58,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:15:58" (3/3) ... [2020-09-25 02:15:58,394 INFO L109 eAbstractionObserver]: Analyzing ICFG psyco_io_1.c [2020-09-25 02:15:58,406 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:15:58,419 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:15:58,445 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:15:58,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:15:58,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:15:58,480 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:15:58,480 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:15:58,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:15:58,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:15:58,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:15:58,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:15:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-09-25 02:15:58,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 02:15:58,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:15:58,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:15:58,530 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:15:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:15:58,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1735850516, now seen corresponding path program 1 times [2020-09-25 02:15:58,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:15:58,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1808229775] [2020-09-25 02:15:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:15:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:15:58,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:58,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:15:58,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-09-25 02:15:58,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:15:58,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 02:15:58,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:15:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:15:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 02:15:58,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:15:58,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:15:58,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:15:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:15:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:58,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:15:58,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:15:58,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:15:58,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 02:15:58,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:15:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:15:58,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:15:58,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:15:58,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:15:58,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:15:58,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1808229775] [2020-09-25 02:15:58,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:15:58,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:15:58,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132632453] [2020-09-25 02:15:58,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:15:58,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:15:58,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:15:58,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:15:58,989 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 3 states. [2020-09-25 02:15:59,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:15:59,083 INFO L93 Difference]: Finished difference Result 368 states and 482 transitions. [2020-09-25 02:15:59,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:15:59,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-09-25 02:15:59,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:15:59,103 INFO L225 Difference]: With dead ends: 368 [2020-09-25 02:15:59,103 INFO L226 Difference]: Without dead ends: 163 [2020-09-25 02:15:59,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:15:59,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-25 02:15:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-09-25 02:15:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-09-25 02:15:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 193 transitions. [2020-09-25 02:15:59,175 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 193 transitions. Word has length 35 [2020-09-25 02:15:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:15:59,176 INFO L479 AbstractCegarLoop]: Abstraction has 163 states and 193 transitions. [2020-09-25 02:15:59,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:15:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 193 transitions. [2020-09-25 02:15:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 02:15:59,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:15:59,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:15:59,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:15:59,179 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:15:59,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:15:59,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1081886035, now seen corresponding path program 1 times [2020-09-25 02:15:59,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:15:59,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784635080] [2020-09-25 02:15:59,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:15:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:15:59,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:59,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:59,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:59,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:15:59,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 02:15:59,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:15:59,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-09-25 02:15:59,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:15:59,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:15:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 02:15:59,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:15:59,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:15:59,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:15:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:15:59,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:15:59,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:15:59,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:15:59,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:15:59,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:15:59,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:15:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:15:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:15:59,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:15:59,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:15:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:15:59,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784635080] [2020-09-25 02:15:59,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:15:59,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:15:59,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558492934] [2020-09-25 02:15:59,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:15:59,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:15:59,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:15:59,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:15:59,554 INFO L87 Difference]: Start difference. First operand 163 states and 193 transitions. Second operand 4 states. [2020-09-25 02:15:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:15:59,967 INFO L93 Difference]: Finished difference Result 327 states and 388 transitions. [2020-09-25 02:15:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:15:59,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-09-25 02:15:59,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:15:59,970 INFO L225 Difference]: With dead ends: 327 [2020-09-25 02:15:59,971 INFO L226 Difference]: Without dead ends: 178 [2020-09-25 02:15:59,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:15:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-25 02:15:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-09-25 02:15:59,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-25 02:15:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 208 transitions. [2020-09-25 02:15:59,990 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 208 transitions. Word has length 36 [2020-09-25 02:15:59,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:15:59,990 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 208 transitions. [2020-09-25 02:15:59,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:15:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 208 transitions. [2020-09-25 02:15:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 02:15:59,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:15:59,993 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:15:59,993 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:15:59,993 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:15:59,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:15:59,994 INFO L82 PathProgramCache]: Analyzing trace with hash 989236732, now seen corresponding path program 1 times [2020-09-25 02:15:59,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:15:59,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400674405] [2020-09-25 02:15:59,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:16:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:00,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:00,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:00,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:00,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 02:16:00,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:16:00,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 02:16:00,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 02:16:00,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:16:00,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:00,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:16:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:00,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:00,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:16:00,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:00,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:16:00,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:16:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:16:00,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:16:00,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:16:00,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400674405] [2020-09-25 02:16:00,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:16:00,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:16:00,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782924741] [2020-09-25 02:16:00,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:16:00,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:16:00,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:16:00,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:16:00,256 INFO L87 Difference]: Start difference. First operand 178 states and 208 transitions. Second operand 4 states. [2020-09-25 02:16:00,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:16:00,363 INFO L93 Difference]: Finished difference Result 323 states and 379 transitions. [2020-09-25 02:16:00,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:16:00,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-25 02:16:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:16:00,366 INFO L225 Difference]: With dead ends: 323 [2020-09-25 02:16:00,366 INFO L226 Difference]: Without dead ends: 160 [2020-09-25 02:16:00,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:16:00,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-25 02:16:00,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-09-25 02:16:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-09-25 02:16:00,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 184 transitions. [2020-09-25 02:16:00,381 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 184 transitions. Word has length 58 [2020-09-25 02:16:00,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:16:00,382 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 184 transitions. [2020-09-25 02:16:00,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:16:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 184 transitions. [2020-09-25 02:16:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 02:16:00,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:16:00,386 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:16:00,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:16:00,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:16:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:16:00,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1364131535, now seen corresponding path program 1 times [2020-09-25 02:16:00,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:16:00,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960028577] [2020-09-25 02:16:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:16:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:00,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:00,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:00,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 02:16:00,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:00,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 02:16:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:16:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-25 02:16:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 02:16:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:00,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:16:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:00,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:00,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:00,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:16:00,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:00,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:16:00,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:00,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:16:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:16:00,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:16:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:16:00,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960028577] [2020-09-25 02:16:00,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:16:00,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:16:00,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243074482] [2020-09-25 02:16:00,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:16:00,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:16:00,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:16:00,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:16:00,622 INFO L87 Difference]: Start difference. First operand 160 states and 184 transitions. Second operand 4 states. [2020-09-25 02:16:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:16:00,950 INFO L93 Difference]: Finished difference Result 380 states and 450 transitions. [2020-09-25 02:16:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:16:00,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2020-09-25 02:16:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:16:00,953 INFO L225 Difference]: With dead ends: 380 [2020-09-25 02:16:00,956 INFO L226 Difference]: Without dead ends: 255 [2020-09-25 02:16:00,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:16:00,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-09-25 02:16:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 249. [2020-09-25 02:16:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-25 02:16:00,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 290 transitions. [2020-09-25 02:16:00,996 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 290 transitions. Word has length 71 [2020-09-25 02:16:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:16:00,999 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 290 transitions. [2020-09-25 02:16:00,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:16:01,000 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 290 transitions. [2020-09-25 02:16:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 02:16:01,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:16:01,006 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:16:01,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:16:01,006 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:16:01,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:16:01,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2059109809, now seen corresponding path program 1 times [2020-09-25 02:16:01,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:16:01,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1621045268] [2020-09-25 02:16:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:16:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:01,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:01,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:01,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:01,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 02:16:01,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:16:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 02:16:01,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:16:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 02:16:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:16:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:01,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:16:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:01,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:01,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:01,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:16:01,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:01,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:16:01,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:01,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:16:01,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:16:01,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:16:01,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:16:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:16:01,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1621045268] [2020-09-25 02:16:01,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:16:01,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:16:01,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260113806] [2020-09-25 02:16:01,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:16:01,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:16:01,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:16:01,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:16:01,282 INFO L87 Difference]: Start difference. First operand 249 states and 290 transitions. Second operand 4 states. [2020-09-25 02:16:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:16:01,519 INFO L93 Difference]: Finished difference Result 494 states and 576 transitions. [2020-09-25 02:16:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:16:01,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-09-25 02:16:01,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:16:01,522 INFO L225 Difference]: With dead ends: 494 [2020-09-25 02:16:01,522 INFO L226 Difference]: Without dead ends: 283 [2020-09-25 02:16:01,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:16:01,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2020-09-25 02:16:01,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2020-09-25 02:16:01,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-25 02:16:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 322 transitions. [2020-09-25 02:16:01,536 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 322 transitions. Word has length 72 [2020-09-25 02:16:01,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:16:01,536 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 322 transitions. [2020-09-25 02:16:01,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:16:01,537 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 322 transitions. [2020-09-25 02:16:01,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-25 02:16:01,539 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:16:01,540 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:16:01,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:16:01,540 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:16:01,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:16:01,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1063922455, now seen corresponding path program 1 times [2020-09-25 02:16:01,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:16:01,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1034402228] [2020-09-25 02:16:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:16:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:01,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:01,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-09-25 02:16:01,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:01,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 02:16:01,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:16:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 02:16:01,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 02:16:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:16:01,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:16:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:01,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:01,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:01,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:16:01,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:01,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:16:01,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:01,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:16:01,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:16:01,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:16:01,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:16:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 02:16:01,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1034402228] [2020-09-25 02:16:01,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:16:01,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:16:01,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365396211] [2020-09-25 02:16:01,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:16:01,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:16:01,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:16:01,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:16:01,786 INFO L87 Difference]: Start difference. First operand 281 states and 322 transitions. Second operand 4 states. [2020-09-25 02:16:01,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:16:01,986 INFO L93 Difference]: Finished difference Result 460 states and 530 transitions. [2020-09-25 02:16:01,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 02:16:01,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2020-09-25 02:16:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:16:01,993 INFO L225 Difference]: With dead ends: 460 [2020-09-25 02:16:01,994 INFO L226 Difference]: Without dead ends: 217 [2020-09-25 02:16:01,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:16:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-25 02:16:02,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-25 02:16:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-25 02:16:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2020-09-25 02:16:02,011 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 111 [2020-09-25 02:16:02,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:16:02,015 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2020-09-25 02:16:02,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:16:02,016 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2020-09-25 02:16:02,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 02:16:02,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:16:02,026 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:16:02,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:16:02,035 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:16:02,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:16:02,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1519310599, now seen corresponding path program 1 times [2020-09-25 02:16:02,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:16:02,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949357680] [2020-09-25 02:16:02,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:16:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:02,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:02,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:02,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 02:16:02,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 02:16:02,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:16:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 02:16:02,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 02:16:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:16:02,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:16:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:16:02,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:16:02,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:16:02,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:16:02,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:16:02,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:16:02,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:16:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:16:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:16:02,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:16:02,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:16:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-25 02:16:02,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949357680] [2020-09-25 02:16:02,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:16:02,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:16:02,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383721765] [2020-09-25 02:16:02,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:16:02,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:16:02,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:16:02,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:16:02,383 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand 5 states. [2020-09-25 02:16:02,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:16:02,819 INFO L93 Difference]: Finished difference Result 225 states and 253 transitions. [2020-09-25 02:16:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:16:02,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-09-25 02:16:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:16:02,820 INFO L225 Difference]: With dead ends: 225 [2020-09-25 02:16:02,821 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:16:02,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:16:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:16:02,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:16:02,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:16:02,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:16:02,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2020-09-25 02:16:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:16:02,823 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:16:02,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:16:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:16:02,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:16:02,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:16:02,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:16:03,018 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:16:03,018 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 02:16:03,018 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~m_connect_2~0 |old(~m_connect_2~0)|) (= ~m_connect_1~0 |old(~m_connect_1~0)|) (= ~m_flush~0 |old(~m_flush~0)|) (= ~m_PipedOutputStream~0 |old(~m_PipedOutputStream~0)|) (= ~m_write~0 |old(~m_write~0)|) (= ~m_close~0 |old(~m_close~0)|)) [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:16:03,019 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:16:03,019 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point L250-1(line 250) no Hoare annotation was computed. [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 344) no Hoare annotation was computed. [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-25 02:16:03,020 INFO L268 CegarLoopResult]: For program point L118-1(line 118) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L234(line 234) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L234-1(line 234) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L36(lines 36 47) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L53(lines 53 104) no Hoare annotation was computed. [2020-09-25 02:16:03,021 INFO L268 CegarLoopResult]: For program point L86-1(lines 86 101) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L86-2(line 86) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L86-3(line 86) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L202-1(lines 202 217) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L202-2(line 202) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L202-3(line 202) no Hoare annotation was computed. [2020-09-25 02:16:03,022 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L70-1(lines 70 85) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L70-3(line 70) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L318(line 318) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L318-1(lines 318 333) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L318-2(line 318) no Hoare annotation was computed. [2020-09-25 02:16:03,023 INFO L268 CegarLoopResult]: For program point L318-3(line 318) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L186-1(lines 186 201) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L186-2(line 186) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L186-3(line 186) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L54-1(lines 54 69) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-09-25 02:16:03,024 INFO L268 CegarLoopResult]: For program point L54-3(line 54) no Hoare annotation was computed. [2020-09-25 02:16:03,025 INFO L264 CegarLoopResult]: At program point L335(lines 23 339) the Hoare annotation is: (let ((.cse0 (= main_~this_sink~0 0))) (or (and .cse0 (= main_~q~0 2)) (and (= main_~q~0 0) .cse0) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0))))) [2020-09-25 02:16:03,025 INFO L268 CegarLoopResult]: For program point L302(line 302) no Hoare annotation was computed. [2020-09-25 02:16:03,025 INFO L268 CegarLoopResult]: For program point L302-1(lines 302 317) no Hoare annotation was computed. [2020-09-25 02:16:03,025 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 344) no Hoare annotation was computed. [2020-09-25 02:16:03,025 INFO L268 CegarLoopResult]: For program point L302-2(line 302) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L302-3(line 302) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L170-1(lines 170 185) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L170-2(line 170) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L170-3(line 170) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L286(line 286) no Hoare annotation was computed. [2020-09-25 02:16:03,026 INFO L268 CegarLoopResult]: For program point L286-1(lines 286 301) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L286-2(line 286) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L286-3(line 286) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L154-1(lines 154 169) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L88(lines 88 99) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L154-2(line 154) no Hoare annotation was computed. [2020-09-25 02:16:03,027 INFO L268 CegarLoopResult]: For program point L154-3(line 154) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L270-1(lines 270 285) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L270-2(line 270) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L270-3(line 270) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-09-25 02:16:03,028 INFO L268 CegarLoopResult]: For program point L105(lines 105 220) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L138-1(lines 138 153) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L72(lines 72 83) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L138-2(line 138) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L138-3(line 138) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L254(line 254) no Hoare annotation was computed. [2020-09-25 02:16:03,029 INFO L268 CegarLoopResult]: For program point L221(lines 221 336) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L254-1(lines 254 269) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L254-2(line 254) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L254-3(line 254) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L122-1(lines 122 137) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L56(lines 56 67) no Hoare annotation was computed. [2020-09-25 02:16:03,030 INFO L268 CegarLoopResult]: For program point L122-2(line 122) no Hoare annotation was computed. [2020-09-25 02:16:03,031 INFO L268 CegarLoopResult]: For program point L122-3(line 122) no Hoare annotation was computed. [2020-09-25 02:16:03,031 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 339) the Hoare annotation is: (or (and (= main_~q~0 0) (= main_~this_sink~0 0)) (and (<= 3 main_~q~0) (or (<= (+ main_~this_sink~0 1) 0) (<= 1 main_~this_sink~0)))) [2020-09-25 02:16:03,031 INFO L268 CegarLoopResult]: For program point L23-3(lines 23 339) no Hoare annotation was computed. [2020-09-25 02:16:03,031 INFO L268 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-09-25 02:16:03,031 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-09-25 02:16:03,031 INFO L268 CegarLoopResult]: For program point L238-1(lines 238 253) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L172(lines 172 183) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L238-2(line 238) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L238-3(line 238) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L106-1(lines 106 121) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L106-2(line 106) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L106-3(line 106) no Hoare annotation was computed. [2020-09-25 02:16:03,032 INFO L268 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L222-1(lines 222 237) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L156(lines 156 167) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L222-2(line 222) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L222-3(line 222) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L272(lines 272 283) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-09-25 02:16:03,033 INFO L268 CegarLoopResult]: For program point L140(lines 140 151) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L256(lines 256 267) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L124(lines 124 135) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L240(lines 240 251) no Hoare annotation was computed. [2020-09-25 02:16:03,034 INFO L268 CegarLoopResult]: For program point L108(lines 108 119) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L92(lines 92 94) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 02:16:03,035 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-09-25 02:16:03,036 INFO L268 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-09-25 02:16:03,036 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-25 02:16:03,036 INFO L268 CegarLoopResult]: For program point L76(lines 76 78) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L258(line 258) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L60(lines 60 62) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-09-25 02:16:03,037 INFO L268 CegarLoopResult]: For program point L242(line 242) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L176(lines 176 178) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L264 CegarLoopResult]: At program point L325(lines 13 344) the Hoare annotation is: false [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L226(line 226) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L160(lines 160 162) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-09-25 02:16:03,038 INFO L268 CegarLoopResult]: For program point L28-2(line 28) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L276(lines 276 278) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L144(lines 144 146) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L260(lines 260 262) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L128(lines 128 130) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L244(lines 244 246) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L112(lines 112 114) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-09-25 02:16:03,039 INFO L268 CegarLoopResult]: For program point L228(lines 228 230) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 343) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 344) the Hoare annotation is: true [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L328(line 328) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L312(line 312) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-09-25 02:16:03,040 INFO L268 CegarLoopResult]: For program point L296(line 296) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L280(line 280) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L33(lines 33 52) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-09-25 02:16:03,041 INFO L268 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L298(line 298) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L298-1(line 298) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L232(line 232) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L166-1(line 166) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 49) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L34-2(line 34) no Hoare annotation was computed. [2020-09-25 02:16:03,042 INFO L268 CegarLoopResult]: For program point L34-3(line 34) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L282-1(line 282) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L150-1(line 150) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L266-1(line 266) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-09-25 02:16:03,043 INFO L268 CegarLoopResult]: For program point L134-1(line 134) no Hoare annotation was computed. [2020-09-25 02:16:03,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:16:03 BoogieIcfgContainer [2020-09-25 02:16:03,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:16:03,071 INFO L168 Benchmark]: Toolchain (without parser) took 6083.67 ms. Allocated memory was 138.9 MB in the beginning and 278.4 MB in the end (delta: 139.5 MB). Free memory was 101.8 MB in the beginning and 156.8 MB in the end (delta: -55.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,071 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.51 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 181.5 MB in the end (delta: -80.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,073 INFO L168 Benchmark]: Boogie Preprocessor took 61.94 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 179.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,074 INFO L168 Benchmark]: RCFGBuilder took 688.80 ms. Allocated memory is still 204.5 MB. Free memory was 179.5 MB in the beginning and 143.3 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,075 INFO L168 Benchmark]: TraceAbstraction took 4683.50 ms. Allocated memory was 204.5 MB in the beginning and 278.4 MB in the end (delta: 73.9 MB). Free memory was 143.3 MB in the beginning and 156.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:16:03,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.0 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 634.51 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.0 MB in the beginning and 181.5 MB in the end (delta: -80.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.94 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 179.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 688.80 ms. Allocated memory is still 204.5 MB. Free memory was 179.5 MB in the beginning and 143.3 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4683.50 ms. Allocated memory was 204.5 MB in the beginning and 278.4 MB in the end (delta: 73.9 MB). Free memory was 143.3 MB in the beginning and 156.8 MB in the end (delta: -13.5 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 343]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((this_sink == 0 && q == 2) || (q == 0 && this_sink == 0)) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (q == 0 && this_sink == 0) || (3 <= q && (this_sink + 1 <= 0 || 1 <= this_sink)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1253 SDtfs, 1672 SDslu, 85 SDs, 0 SdLazy, 805 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 7 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 495 NumberOfCodeBlocks, 495 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 97882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 144/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...